. 55°圆柱内螺纹(RP) 规 1/16 -28 1/8 -28 1/4 -19 3/8 -19 1/2 -14 3/4 -14 1 -11 1 1/4 -11 1 1/2 -11 2 -11 格 标准直径 6.5 8.5 11.4 14.9 18.6 24 30.2 38.8 44.7 56.5 钻孔直径 最小 6.49 8.495 11.341 14.846 18.489 23.975 30.11 38.771 44.664 56.475 1/16 -28 1/8 -28 1/4 -19 3/8 -19 1/2 -14 3/4 -14 规格 最大 6.632 8.637 11.549 15.045 18.773 24.259 30.472 39.133 45.026 56.837 55°圆锥内螺纹(RC) 钻标准直径 6.3 8.3 11 14.5 18.1 23.5 29.6 38.2 44 55.6 孔直径 最小 6.244 8.249 10.962 14.448 17.979 23.378 29.459 37.976 43.869 55.412 最大 6.384 8.388 11.174 14.658 18.263 23.663 29.822 38.339 44.232 55.844 1 -11 1 1/4 -11 1 1/2 -11 2 -11 公制螺纹(M) 规 M1 M2 M3 M4 M5 M6 M7 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M33 M36 M39 M42 M45 M48 M52 M56 '. 55°非密封圆柱内螺纹(G) 径 最小 0.729 1.567 2.459 3.242 4.134 4.917 5.917 6.647 8.376 10.106 11.835 13.835 15.294 17.294 19.294 20.752 23.752 26.211 29.211 31.67 34.67 37.129 40.129 42.587 46.587 50.046 规 1/16 -27 1/8 -27 1/4 -18 3/8 -18 1/2 -14 3/4 -14 1 -11.5 1 1/4 -11.5 格 标准直径 6.135 8.48 10.996 14.416 17.813 23.127 29.059 37.784 规 1/16 -28 1/8 -28 1/4 -19 3/8 -19 1/2 -14 5/8 -14 3/4 -14 7/8 -14 1 -11 1 1/8 -11 1 1/4 -11 1 1/2 -11 1 3/4 -11 2 -11 格 标准直径 6.7 8.7 11.7 15.2 19 21 24.5 28.2 30.6 35.2 39.2 45 51 57 钻孔直径 最小 6.561 8.566 11.445 14.95 18.631 20.587 24.117 27.877 30.291 34.939 38.952 44.845 50.788 56.656 最大 6.843 8.848 11.89 15.395 19.172 21.128 24.658 28.418 30.931 35.579 39.592 45.485 51.428 57.296 格 标准直径 0.75 1.6 2.5 3.3 4.2 5 6 6.8 8.5 10.25 12 14 15.5 17.5 19.5 21 24 26.5 29.5 32 35 37.5 40.5 43 47 50.5 钻孔直最大 0.785 1.679 2.599 3.422 4.334 5.153 6.153 6.912 8.676 10.441 12.21 14.21 15.744 17.744 19.744 21.252 24.252 26.771 29.771 32.27 35.27 37.799 40.799 43.297 47.487 50.996 60°圆锥内螺纹(NPT) 钻孔最直大 径 最小 6.046 8.393 10.864 14.284 17.642 22.957 28.851 37.576 6.223 8.568 11.128 14.548 17.983 23.297 29.266 37.991 . M64 M72 58 66 58.505 66.505 57.505 65.505 1 1/2 -11.5 2 -11.5 43.85 55.86 44.06 56.07 43.646 55.659 '.
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